| Field Verification Program (Aquatic Disposal): Comparison of Field and Laboratory Bioaccumulation of Organic and Inorganic Contaminants from Black Rock Harbor Dredged Material |
MAY 88 |
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| Authors:
James L. Lake; Walter Galloway; Gerald Hoffman; William Nelson; K. J. Scott; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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 | The utility of laboratory tests for predicting bioaccumulation of contaminants in the field was evaluated by comparing the identities, relative abundances, and quantities of organic and inorganic contaminants accumulated by organisms exposed to dredged material in both laboratory and field studies. The organisms used were Mytilus edulis (a filter-feeding bivalve) and Nephtys incisa (a benthic polychaete). These organisms were exposed in the laboratory and in the field to a contaminated ... |
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| Field Verification Program (Aquatic Disposal). The Assessment of Black Rock Harbor Dredged Material Impacts on Laboratory Population Responses |
JUL 87 |
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| Authors:
John H. Gentile; K. J. Scott; Suzanne M. Lussier; Michele S. Redmond; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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| Studies were conducted to determine the applicability of using population responses to assess the impact of dredged material. Laboratory methods were successfully developed to continuously expose Ampelisca abdita and Mysidopsis bahia to bedded and suspended sediments throughout their life cycle. Biological effects, including survival, individual growth, reproduction, and intrinsic rate of population growth, were measured over a range of exposures to Black Rock Harbor dredged material (BRH). Short-term effects (96-hr ... |
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| Histopathological Effects of Black Rock Harbor Dredged Material on Marine Organisms: A Laboratory Investigation |
FEB 86 |
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| Authors:
Paul P. Yevich; Carolyn A. Yevich; K. J. Scott; Michelle Redmond; Dianne Black; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
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| Histopathology studies were conducted on tissues representing the major organ systems of several marine organisms exposed in the laboratory to Black Rock Harbor dredged material. These studies examined the applicability of these procedures for measuring biological effects of dredged material and the variabilty and reproducibility of the methodology. Female reproductive tract changes in the filter feeding bivalve mollusc, Mytilus edulis, included degeneration of ova and loss of nuclei, cytoplasm, and ... |
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| Applications of Laboratory Population Responses for Evaluating the Effects of Dredged Material. |
SEP 1985 |
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| Authors:
J. H. Gentile; K. J. Scott; S. Lussier; M. Redmond; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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| Studies were conducted to determine the effect of Black Rock Harbor (BRH) dredged material on the survival, growth, reproduction, and population responses of the benthic amphipod, Ampelisca abdita, and the epibenthic shrimp, Mysidopsis bahia. Exposure system designs are described that permit continuous dosing of suspended solids at concentrations of 300 mg/1 while proportionally mixing contaminated and reference sediments with reliability and precision. Ninety-six-hour LC50 values were 290 mg BRH/1 for ... |
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